SR-25 Complete Lower For Sale????

Hey there. Yes the SR-25 will work with the mega. I have bought several Kac lowers from gun broker. That’s the best place to acquire them.

It doesn't have to be the MARS lower. The standard LMT will work fine, as the forgings were actually made by LMT for KAC at one point. The cuts and patterns should match.

Centurion arms sells a billet lower that is compatible as well.

ADM also makes a SR-25 cut lower if you don’t need a matching lower company. Offers a few different options for ambi set up compared to a KAC, like a right side bolt hold open if I am not mistaken. Similar price to an LMT lower and you can get it stripped to build how you want.

You can buy two LMT MARS lowers for what you’ll likely pay for the KAC and you’ll have them sooner. KAC lowers are not sold separately so it’s a crap shoot when they will turn up

there is fit, and then there is fit. Other than a Knights, the best fit for a KAC upper is an LMT MWS or MARS-H lower. Some others will work, but they really do not fit well.

I just picked up a LMT lower yesterday and it fits a Knight's Mk11 Mod0 upper like it was a matched set. Really happy with it.

Tha MARS is a good choice. I’m a huge KAC fan but I’m just not willing to pay what people want for the lowers. KAC and LMT have an intertwined relationship which is why the uppers and lowers fit so well together.

It’s been a while since I looked but I seem to remember being able to build a stripped MARS for less than the cost of a complete lower. And that was using a Geissele trigger. Check out LMTs website for the lower parts kit.

DRAM40A1 said:

Are there any benefits to the MARS-H over the standard MWS lower other than a right side bolt release?

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I own both and can’t tell a difference between the two short of the right bolt release. Really comes down to if you feel having that full Ambi function is important to you. I will say, the right side bolt release on the MARS-H does contact/rest on the knights upper when I tried initial fit. Doesn’t look like it would impact function but it’s there. That’s why I will be running a standard MARS on my Knights 20” and a LMT upper on my H. I can take some pictures tonight to show you.

Ok, here is the knights upper with LMT MARS-H lower. Note - this is a stripped lower that I have not finished yet.

Here is the knights upper with LMT MWS lower. Again, stripped lower but you get the idea.

Primary Arms sells the stripped MWS lower for $275 or so....

Yes it is. I have 2 MWS and 2 MARS-H lowers right now. With more knights and LMT uppers in order. The pile just keeps growing!

You can purchase complete lowers directly from KAC. Send them an email.

Marcus85 said:

You can purchase complete lowers directly from KAC. Send them an email.

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That’s a new one one me! According to Jack Leuba and others at KAC they will not sell SR-25 lowers separately. I believe they have instructed people that wanted a lower to buy a complete rifle and sell the upper. They sell SR-15 and SR-30 lowers but not SR-25 lowers

87stang said:

That’s a new one one me! According to Jack Leuba and others at KAC they will not sell SR-25 lowers separately. I believe they have instructed people that wanted a lower to buy a complete rifle and sell the upper. They sell SR-15 and SR-30 lowers but not SR-25 lowers

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Didn’t know that, I’ve only ordered anSR-30 lower. Still worth an email to see if they had a change in policy.

You can email them but you’d be wasting time. The have stated many time, recently in fact that basically he’ll will freeze over before they sell SR-25 lowers

DRAM40A1 said:

So I broke down and bought a KAC SR-25 complete upper , PC, with the intention of getting the complete lower as well.

I sold an Aero 308 that I pieced together recently and sent funds today. Supposedly has 20 rounds through it and in as new condition.

I’ve read I can run it on my Mega Maten until I find the KAC lower. I’ve also found an LMT MARS-H lower today and read those fit as well.....I’ve been looking today and haven’t had much luck finding a complete KAC lower for sale. Anyone know of a source?

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They don’t sell Factory lowers in 308. Your going to be stuck with hybrid which isn’t bad. However if you want a KAC rifle, save thethe money.
YMMV but I’ve been dealing with KAC for 20 years and they don’t sell SR 25 lowers.

87stang said:

You can email them but you’d be wasting time. The have stated many time, recently in fact that basically he’ll will freeze over before they sell SR-25 lowers

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You are 1000% CORRECT. They will not do it because it’s part of their identity. If you want the rifle your going to have to buy one unless you get someone that is willing to sell u a lower which will most likely be Outrageously priced.....

DRAM40A1 said:

BTW, all in including shipping, I have $2070 in it so far. The LMT lower is looking better and better. ?

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they know there always bottom feeders looking for a KAC 25 NIB for less than.....???.... but GOOD LUCK......
Btw, I LOVE my LMT’s, but your resale on a hybrid is ZILCH compared to your KAC SR 25.

If you actually saved and bought the entire rifle, took care of it and one day decided to part ways, you could sell it for at least what you paid. Your hybrid while certainly excellent, won’t be worth half of what the KAC 25 would sell for....

MY LMT MWSF IS OUTSTANDING,,,,,,especially in 6.5 Creedmoor. However it costs less than half of what a new KAC 25 would cost. Is it worth it? That depends. Don’t listen PLEASE DONT LISTEN TO,THE POORS who just piss and moan about how they aren’t worth it because they are too poor and can’t afford to buy one....



I bought two KAC SR 25’s (one EC and one ECC) at the same time. The dimpled barrel URX 3.1 sold for 3K more than I paid for it. This one (the EC) is a fantastic shooter which groups around .65 MOA with 5 rounds of 168 grain FGMM and will sell for what I paid for it (AT LEAST) if I ever decide to part ways.....YMMV

DRAM40A1 said:

I’ve decided to get the LMT MARS-H. Now I just need to figure out if I want the complete LMT lower or the stripped lower and put all the parts I want on it. The stripped is about $400 and a complete lower right at $1000.

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Go,with the MAR-S Lower....it is pure awesomeness. Sinc eyou building a really nice rifle, buy once cry once. Don’t go cheap, you will regret. The MARS is a truly ambidextrous Lower and its fantastic.

87stang said:

You can email them but you’d be wasting time. The have stated many time, recently in fact that basically he’ll will freeze over before they sell SR-25 lowers

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The old man will be dead soon,

Marcus85 said:

You can purchase complete lowers directly from KAC. Send them an email.

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Your wrong

DRAM40A1 said:

Part of their identity? They sell SR-15 lowers, SR-30 lowers, all the uppers, and parts so what’s the hang up on selling an SR-25 lower?

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The KAC 15 while one of the smoothest 5.56 rifles on the market with go to hell and back reliability has a ton of competition. The KA SR 25 is used around the world and only has a few competitors (HK, LMT and ??)....the SR 25 is what made Eugene Stoner and Knight’s famous. Their culture is one of “secrecy and obsessive quality”. They do ‘t sell the KAC 25 lowers. The only competition they have is LMT, and HK. Who else is building an AR 10 that’s used around the world that’s built like a shit brick house?

Marcus85 said:

The old man will be dead soon,

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That’s a really, really SICK COMMENT. YOUR A disturbed individual that needs psychiatric intervention. To openly say such a disgusting statement reflects poorly on the type of person you are. Please do tell the world who u really are instead of hiding behind your computer...Marcus85

DRAM40A1 said:

But they will sell the uppers all day long. That’s what doesn’t make sense to me....?

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DRAM40A1 said:

But they will sell the uppers all day long. That’s what doesn’t make sense to me....?

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I understand. They want their customers to invest in their system. They will sell uppers all day long because they know they won’t function without their lowers (except LMT ). LMT’s work great and I trust them with my life as well. After using the KA SR25 rifles for years, I will say that they stand up to severe, hard core abuse in the field. I know of no other ar 10 that has this established reputation and it took Knight’s at least 4 wars and millions in research to get there.

I’m not saying they are the end all anything. But they are tough, with go to hell reliability in all weather environments and I would trust my life to either system in a heartbeat. There are not a lot of gas rifles
I know of that I would consider spending a month in the desert with contact to save your life...
....YMMV

The others I trust ar the FN Scar (with caveats), the LMT MWS with Caveats, and the HK mr 556 and possible the HK mR 762 A1 (it’s extremely accurate but it hasn’t been fielded for a long enough period To know if they will stand the test of time., the HK MR 556 has....YMMV JMHO

Voyager1 said:

That’s a really, really SICK COMMENT. YOUR A disturbed individual that needs psychiatric intervention. To openly say such a disgusting statement reflects poorly on the type of person you are. Please do tell the world who u really are instead of hiding behind your computer...Marcus85

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Sick for stating a fact in reply to a comment that said when hell freezes over? There will be a change in leadership soon so things will change. All the cool shit to come out over the years in small, limited runs seems to have come from Trey.

Also not wrong about purchasing complete lowers from KAC because I've done it. Just not SR25 variant.

DRAM40A1 said:

But they will sell the uppers all day long. That’s what doesn’t make sense to me....?

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They just started doing that. They announced selling uppers maybe two years ago but they really have only been available for a little over a year. Maybe one day they will sell the lowers separately but I wouldn’t hold my breath, even with Trey at the helm. As far as reliability goes, check out a class running 7.62 semi autos and you’ll see why KAC carries the premium. KAC and LMT always seem to make it through the class without issue but FN, HK, and all the race guns like Seekins and JP have problems. I’m not saying they are bad platforms but they are not in the same league. Different tools for different jobs.

Marcus85 said:

Sick for stating a fact in reply to a comment that said when hell freezes over? There will be a change in leadership soon so things will change. All the cool shit to come out over the years in small, limited runs seems to have come from Trey.

Also not wrong about purchasing complete lower self from KAC because I've done it. Just not SR25 variant. Anyone can purchase SR 15 lowers. You’ve done it! Wow your really there LMFAO....

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I never SAID YOU COULDN'T BUY SR 15 lowers..... your certifiable....you don’t have an ounce of humanity in you. ITS HIS BUSINESS. JUST BECAUSE YOU CANT AFFORD IT, YOU HOPE HE DIES SO,THE SON LOWERS THE PRICE???? God I feel sorry for anyone that gets in a relationship with you.

Just because you can’t afford to buy one, it’s sickening to wish that the one of the greatest firearms designers of our liftetimes you can’t wait till he dies so you his son will you an SR 25 Lower....did I say your disgusting and sick?

Marcus85 said:

Sick for stating a fact in reply to a comment that said when hell freezes over? There will be a change in leadership soon so things will change. All the cool shit to come out over the years in small, limited runs seems to have come from Trey.

Also not wrong about purchasing complete lowers from KAC because I've done it. Just not SR25 variant.

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its NOT YOUT BUSINESS! Man you sure have a sense of entitlement. If you want one that badly, go out work really hard like everyone else has to and then buy one. That is a much better way then stating you can’t wait for Mr. Knight to die. That’s absolutely disgusting!

WTG Marcus!! I hope Raoul goes too.

Marcus85 said:

You can purchase complete lowers directly from KAC. Send them an email.

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Not unless you are law enforcement or in the military